Comment 9 for bug 981234

bp1@ubuntutest:~/c/comedirecord-1.2$ uname -a
Linux ubuntutest 3.2.0-23-generic-pae #37~lp981234v1 SMP Sat Apr 14 03:45:23 UTC 2012 i686 i686 i386 GNU/Linux
bp1@ubuntutest:~/c/comedirecord-1.2$

I've tested it with comedirecord and it works both the limit to 20M and also it becomes already nicely stable with the default setting of 2M.

  fprintf(stderr,"/dev/comedi%d has a buffer of %d\n",devNo,
   comedi_get_buffer_size(dev[devNo],subdevice));
  comedi_set_buffer_size(dev[devNo],subdevice,10000000);
  fprintf(stderr,"/dev/comedi%d has a buffer of %d\n",devNo,
   comedi_get_buffer_size(dev[devNo],subdevice));

bp1@ubuntutest:~/c/comedirecord-1.2$ ./comedirecord
/dev/comedi0 has a buffer of 2097152
/dev/comedi0 has a buffer of 2097152
bp1@ubuntutest:~/c/comedirecord-1.2$ make
make: Nothing to be done for `first'.
bp1@ubuntutest:~/c/comedirecord-1.2$ make
g++ -c -pipe -g -Wall -W -D_REENTRANT -DQT_WEBKIT -DQT_GUI_LIB -DQT_CORE_LIB -DQT_SHARED -I/usr/share/qt4/mkspecs/linux-g++ -I. -I/usr/include/qt4/QtCore -I/usr/include/qt4/QtGui -I/usr/include/qt4 -I. -o comediscope.o comediscope.cpp
g++ -o comedirecord comedirecord.o comediscope.o iirnotch.o gain.o ext_data_receive.o dc_sub.o moc_comedirecord.o moc_comediscope.o moc_gain.o moc_dc_sub.o -L/usr/lib/i386-linux-gnu -lcomedi -lQtGui -lQtCore -lpthread
{ test -n "" && DESTDIR="" || DESTDIR=.; } && test $(gdb --version | sed -e 's,[^0-9]\+\([0-9]\)\.\([0-9]\).*,\1\2,;q') -gt 72 && gdb --nx --batch --quiet -ex 'set confirm off' -ex "save gdb-index $DESTDIR" -ex quit 'comedirecord' && test -f comedirecord.gdb-index && objcopy --add-section '.gdb_index=comedirecord.gdb-index' --set-section-flags '.gdb_index=readonly' 'comedirecord' 'comedirecord' && rm -f comedirecord.gdb-index || true
bp1@ubuntutest:~/c/comedirecord-1.2$ ./comedirecord
/dev/comedi0 has a buffer of 2097152
/dev/comedi0 has a buffer of 10002432